ScarlettPineMtnOW_PA_17322OilandGasWell_PA_SLHKP20210713.docx

PART 1: GENERAL

1.1 SUMMARY

A. Description of Work: Work includes furnishing labor, equipment, supplies, and materials to plug and abandon 10 oil and gas wells, and removal and disposal of specified materials and well fluids. The well/s may contain hydrogen sulfide (H2S). The Contractor shall safely perform the work in this environment, according to 43 CFR 3160, Onshore Order No. 6. Reclamation and facility removal will be bid as a separate contract.

B. Mobilization: The movement of personnel, equipment, supplies, and incidentals to the well or job site. The time required to rig up the drilling, completion/workover rig, or plugging, shall be included as part of mobilization Section 1505 Mobilization/Demobilization.

1.2 LOCATION:

A. Work under this Contract is located in T34 &35N, R84W, Natrona County, Wyoming. The work locations are described in the individual Statements of Work.

1.3 DEFINITIONS:

A. Well Site Restoration: Includes work and equipment necessary to remove well equipment, structures, trash, and well fluids from the well site. Perform necessary grading, backfilling, and placing stored topsoil to match the prescribed conditions and contours.

B. Anticipated Bottom Hole Pressure: This pressure shall be determined from available information including but not limited to completion and production test, drill stem test, or mud weight gradient. Lacking better data, bottom hole pressure shall be determined with formation pressure gradient of 0.44 to 0.50 psi per foot of depth.

1.4 RELATED WORK:

A. Specification Sections:

1. General Information and Requirements Section 01009

1.5 SUBMITTALS:

1.6 HYDROGEN SULFIDE (H2S) CONTINGENCY PLAN:

A. Plugging and Abandonment Operations: When conducted in zones known to contain, or which could reasonably contain, concentrations of H2S of 100 ppm or more in the gas stream must be reviewed for compliance with Onshore Oil and Gas Order Number 6. Onshore Oil and Gas Order Number 2 refers to Onshore Oil and Gas Order Number 6 where specific hydrogen sulfide safety and monitoring equipment minimum standards are addressed.

PART 2: PLUGGING EQUIPMENT AND PRODUCTS

2.1 DRILLING MUD/MUD SPACERS:

A. Drilling Mud/Mud Spacers used for plugging operations shall be bentonite, water, and weighting agent must be maintained on location should a well control issue arise after or while drilling out obstructions in wellbore. A minimum of 300 barrels (bbl) of fresh water shall be maintained on-site. Adequate mud materials must be maintained on-site in order to achieve a minimum density of 9.0 pounds per gallon (ppg). The mud does not have to be premixed. Additives shall be environmentally safe, containing no heavy metals, and provided in sufficient quantities on the well site to contain wellbore pressure.

2.2 CEMENT:

A. Cement used for plugs shall be API Class G. Dry weight of cement and shall be 94 pounds per sack (sk). Dry bulk cement shall be delivered by truck. Cement shall conform to the following:

2.3 CEMENT ADDITIVES:

A. Calcium Chloride (CaCl2) may be used to reduce Wait-On-Cement (WOC) time for the cement plugs. The Contract Officer will determine, based on site conditions, when CaCl2 will be added to the cement. The amount of CaCl2 added to the cement slurry will be determined at the well site based on current conditions. A minimum of 500 lb of CaCl2 should be provided on location during plugging operations.

2.4 WATER:

A. Water used for mud spacers, drilling and cementing operations shall be potable water.

2.5 PLUGGING EQUIPMENT:

A. COMPLETION/WORKOVER RIG (WOR): The rig shall be capable of operating to a depth of 10,000 ft with 2-7/8”, 6.4 lb/ft tubing. The rig shall be furnished with a crew and supervision. Provide the manufacturer’s name, size, and capacity for the rig and the following required accessory equipment:

1. Tubing tools for the size tubing being used.

B. WELL CONTROL EQUIPMENT: The well control equipment shall consist of the Blowout Preventer (BOP), Related Equipment (BOPE), and Accumulator System. The blowout preventer and related equipment shall have a rated working pressure of 5,000 psi (5M). The blowout preventer shall consist of an annular, two single rams - one being a pipe ram and one being a blind ram preventer. The accumulator system shall be capable of closing the BOP and retain a minimum of 200 psi above pre-charge. The related equipment (BOPE) shall include:

1. Two full opening safety valves and subs to fit work string being used.

C. CIRCULATING EQUIPMENT: The circulating equipment shall consist of the mud pump, and mud tanks. The mud pump shall be capable of discharge volumes to 200 gallons per minute (gpm) and discharge pressures to 3000 psi.

D. CEMENTING EQUIPMENT: The cementing equipment shall be capable of either batch mixing or ‘on the fly’ mixing the cement slurry. Cementing equipment must be outfitted with a continuous reading densitometer, and appropriate density must be maintained throughout pumping operations. A mud/multi-purpose pump shall be provided that is capable of pumping the cement slurry to the plug depths as specified.

E. STORAGE TANKS - WELL FLUIDS: A sufficient number of storage tanks shall be furnished to contain all well fluids circulated from the well during the plugging operations. Each storage tank shall have a capacity of at least 400 bbl.

F. PLUG and ABANDONMENT MARKER: Shall be a ¼-inch steel plate with weep hole welded across the top of the casing. The information required on the plate is specified in the individual Statements of Work.

PART 3: EXECUTION

3.1 GENERAL:

A. Depths: Depths given are from ground level.

B. Well Work Log: A daily work log shall be maintained of the entire plugging operation and shall be available for inspection during course of the work. The log shall list depths of existing and new plugs and the number of sacks of cement used for each plug. Submit the work log, a copy of the cement company job log, copies of the cementing pump pressure and pump rate charts, and any casing or cement evaluation logs to the Contracting Officer within 30 days of completion of plugging activities. When applicable, submit third-party job log.

C. Plug Tag or Pressure Test: Curing time shall be long enough to achieve a satisfactory plug tag or pressure test, according to Onshore Oil and Gas Order No. 2, before beginning further plugging operations.

3.2 SITE PREPARATION:

A. General: The Contractor shall perform site preparation work at each well site necessary to set the rig. Surface disturbance shall be held to a minimum.

B. Access to Well Site: Site access roads in some areas may need to be improved for equipment travel. Prior to improving BLM roads, obtain written approval from the Contracting Officer.

C. Storage Tanks: A sufficient number of storage tanks shall be provided on the well site to contain well fluids. All fluids circulated from the well shall be contained and properly disposed of after removal from the well site. Oil or other contaminates shall not be discharged into the watershed.

3.3 PLUGGING PROCEDURE:

A. The individual plugging procedures are included in each Statement of Work.

3.4 SITE RESTORATION:

A. Materials Removal: Remove surface well equipment, structures, buried utility lines and piping, and trash.

B. Grading: Rough grade each location with backhoe.

C. Well Fluids: Fluids that are circulated from the well shall be contained and disposed of after removal from the well site. The Contractor shall be responsible for the disposal of the fluids in a legal manner and for payment of any fees required. The fluids shall be taken to an approved waste disposal facility, which meets the requirements of all federal, state, and local regulations.

D. Final grading and seeding will be completed on a separate contract.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT:

A. Units: The work described in this section will measured as lump sum for each unit complete in place.

4.2 BASIS OF PAYMENT:

A. Payment: Prices and payment will be full compensation for the Work described in this section. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

17322 (01) WELL PLUGGING AND ABANDONMENT (NAME) LS

END OF SECTION

Federal 1-8 orphaned well P&A 017322-1

Federal 1-8 orphaned well P&A 01009-2